Stale IAAS policy attachment to role

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Id	ccdf3f87-7890-4549-9d0f-8f43c1d2751d
Rulename	Stale IAAS policy attachment to role
Description	The rule detects ‘IaaS policies’ attached to a role that has not used them during the past X days. It is recommended to remove unused policies from identities to reduce risk.
Severity	Informational
Tactics	PrivilegeEscalation Persistence
Techniques	T1098
Required data connectors	Authomize
Kind	Scheduled
Query frequency	30m
Query period	30m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Authomize/Analytic Rules/Stale_IAAS_policy_attachment_to_role.yaml
Version	1.0.3
Arm template	ccdf3f87-7890-4549-9d0f-8f43c1d2751d.json

KQL

Authomize_v2_CL
| where ingestion_time() >= ago(30m)
| extend EventID = id_s, Policy = policy_name_s, Severity = severity_s,Description = description_s,Recommendation = recommendation_s,URL = url_s,Tactics = tactics_s
| where Policy has "Stale IAAS policy attachment to role"
| project  EventID, Policy, Severity, Description, Recommendation, URL, Category, Tactics

YAML

customDetails:
  ReferencedURL: URL
  EventName: Policy
  EventRecommendation: Recommendation
  EventDescription: Description
  AuthomizeEventID: EventID
entityMappings:
- fieldMappings:
  - columnName: URL
    identifier: Url
  entityType: URL
alertDetailsOverride:
  alertnameFormat: Alert from Authomize - Stale IAAS policy attachment to role
  alertSeverity: Severity
  alertTactics: Tactics
  alertDescriptionFormat: Stale IAAS policy attachment to role. The rule detects 'IaaS policies' attached to a role that has not used them during the past X days.It is recommended to remove unused policies from identities to reduce risk.
  alertDynamicProperties:
  - alertProperty: AlertLink
    value: URL
status: Available
queryFrequency: 30m
tactics:
- PrivilegeEscalation
- Persistence
triggerThreshold: 0
query: |-
  Authomize_v2_CL
  | where ingestion_time() >= ago(30m)
  | extend EventID = id_s, Policy = policy_name_s, Severity = severity_s,Description = description_s,Recommendation = recommendation_s,URL = url_s,Tactics = tactics_s
  | where Policy has "Stale IAAS policy attachment to role"
  | project  EventID, Policy, Severity, Description, Recommendation, URL, Category, Tactics  
suppressionEnabled: false
queryPeriod: 30m
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    groupByEntities: []
    groupByAlertDetails: []
    groupByCustomDetails: []
    enabled: true
    lookbackDuration: 5h
    matchingMethod: AnyAlert
    reopenClosedIncident: false
suppressionDuration: 5h
version: 1.0.3
kind: Scheduled
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Authomize/Analytic Rules/Stale_IAAS_policy_attachment_to_role.yaml
relevantTechniques:
- T1098
triggerOperator: gt
requiredDataConnectors:
- dataTypes:
  - Authomize_v2_CL
  connectorId: Authomize
severity: Informational
id: ccdf3f87-7890-4549-9d0f-8f43c1d2751d
eventGroupingSettings:
  aggregationKind: SingleAlert
description: The rule detects 'IaaS policies' attached to a role that has not used them during the past X days. It is recommended to remove unused policies from identities to reduce risk.
name: Stale IAAS policy attachment to role

ARM